Migrate correlation and tracing code to LabKit

This change is a fairly straightforward refactor to extract the tracing
and correlation-id code from the gitlab rails codebase into the new
LabKit-Ruby project.

The corresponding import into LabKit-Ruby was in
https://gitlab.com/gitlab-org/labkit-ruby/merge_requests/1

The code itself remains very similar for now.

Extracting it allows us to reuse it in other projects, such as
Gitaly-Ruby. This will give us the advantages of correlation-ids and
distributed tracing in that project too.

Gemfile

@@ -286,6 +286,9 @@ gem 'sentry-raven', '~> 2.7'
 
 gem 'premailer-rails', '~> 1.9.7'
 
+# LabKit: Tracing and Correlation
+gem 'gitlab-labkit', '~> 0.1.2'
+
 # I18n
 gem 'ruby_parser', '~> 3.8', require: false
 gem 'rails-i18n', '~> 5.1'
@@ -316,12 +319,6 @@ group :metrics do
   gem 'raindrops', '~> 0.18'
 end
 
-group :tracing do
-  # OpenTracing
-  gem 'opentracing', '~> 0.4.3'
-  gem 'jaeger-client', '~> 0.10.0'
-end
-
 group :development do
   gem 'foreman', '~> 0.84.0'
   gem 'brakeman', '~> 4.2', require: false

Gemfile.lock

@@ -312,6 +312,12 @@ GEM
     gitlab-default_value_for (3.1.1)
       activerecord (>= 3.2.0, < 6.0)
     gitlab-license (1.0.0)
+    gitlab-labkit (0.1.2)
+      actionpack (~> 5)
+      activesupport (~> 5)
+      grpc (~> 1.15)
+      jaeger-client (~> 0.10)
+      opentracing (~> 0.4)
     gitlab-markup (1.7.0)
     gitlab-sidekiq-fetcher (0.4.0)
       sidekiq (~> 5)
@@ -602,7 +608,7 @@ GEM
       validate_email
       validate_url
       webfinger (>= 1.0.1)
-    opentracing (0.4.3)
+    opentracing (0.5.0)
     optimist (3.0.0)
     org-ruby (0.9.12)
       rubypants (~> 0.2)
@@ -1089,6 +1095,7 @@ DEPENDENCIES
   github-markup (~> 1.7.0)
   gitlab-default_value_for (~> 3.1.1)
   gitlab-license (~> 1.0)
+  gitlab-labkit (~> 0.1.2)
   gitlab-markup (~> 1.7.0)
   gitlab-sidekiq-fetcher (~> 0.4.0)
   gitlab-styles (~> 2.5)
@@ -1116,7 +1123,6 @@ DEPENDENCIES
   httparty (~> 0.16.4)
   icalendar
   influxdb (~> 0.2)
-  jaeger-client (~> 0.10.0)
   jira-ruby (~> 1.4)
   js_regex (~> 3.1)
   json-schema (~> 2.8.0)
@@ -1159,7 +1165,6 @@ DEPENDENCIES
   omniauth-twitter (~> 1.4)
   omniauth-ultraauth (~> 0.0.1)
   omniauth_crowd (~> 2.2.0)
-  opentracing (~> 0.4.3)
   org-ruby (~> 0.9.12)
   peek (~> 1.0.1)
   peek-gc (~> 0.0.2)

app/controllers/application_controller.rb

@@ -128,7 +128,7 @@ class ApplicationController < ActionController::Base
 
     payload[:ua] = request.env["HTTP_USER_AGENT"]
     payload[:remote_ip] = request.remote_ip
-    payload[Gitlab::CorrelationId::LOG_KEY] = Gitlab::CorrelationId.current_id
+    payload[Labkit::Correlation::CorrelationId::LOG_KEY] = Labkit::Correlation::CorrelationId.current_id
 
     logged_user = auth_user
 

changelogs/unreleased/an-use-labkit.yml

+---
+title: Migrate correlation and tracing code to LabKit
+merge_request: 25379
+author:
+type: other

config/initializers/lograge.rb

@@ -35,7 +35,7 @@ unless Sidekiq.server?
       end
 
       payload[:response] = event.payload[:response] if event.payload[:response]
-      payload[Gitlab::CorrelationId::LOG_KEY] = Gitlab::CorrelationId.current_id
+      payload[Labkit::Correlation::CorrelationId::LOG_KEY] = Labkit::Correlation::CorrelationId.current_id
 
       payload
     end

config/initializers/peek.rb

@@ -19,7 +19,7 @@ Peek.into Peek::Views::Gitaly
 Peek.into Peek::Views::Rblineprof
 Peek.into Peek::Views::Redis
 Peek.into Peek::Views::GC
-Peek.into Peek::Views::Tracing if Gitlab::Tracing.tracing_url_enabled?
+Peek.into Peek::Views::Tracing if Labkit::Tracing.tracing_url_enabled?
 
 # rubocop:disable Naming/ClassAndModuleCamelCase
 class PEEK_DB_CLIENT

config/initializers/tracing.rb

 # frozen_string_literal: true
 
-if Gitlab::Tracing.enabled?
-  require 'opentracing'
-
+if Labkit::Tracing.enabled?
   Rails.application.configure do |config|
-    config.middleware.insert_after Gitlab::Middleware::CorrelationId, ::Gitlab::Tracing::RackMiddleware
+    config.middleware.insert_after Gitlab::Middleware::CorrelationId, ::Labkit::Tracing::RackMiddleware
   end
 
   # Instrument the Sidekiq client
   Sidekiq.configure_client do |config|
     config.client_middleware do |chain|
-      chain.add Gitlab::Tracing::Sidekiq::ClientMiddleware
+      chain.add Labkit::Tracing::Sidekiq::ClientMiddleware
     end
   end
 
@@ -18,20 +16,20 @@ if Gitlab::Tracing.enabled?
   if Sidekiq.server?
     Sidekiq.configure_server do |config|
       config.server_middleware do |chain|
-        chain.add Gitlab::Tracing::Sidekiq::ServerMiddleware
+        chain.add Labkit::Tracing::Sidekiq::ServerMiddleware
       end
     end
   end
 
   # Instrument Rails
-  Gitlab::Tracing::Rails::ActiveRecordSubscriber.instrument
-  Gitlab::Tracing::Rails::ActionViewSubscriber.instrument
+  Labkit::Tracing::Rails::ActiveRecordSubscriber.instrument
+  Labkit::Tracing::Rails::ActionViewSubscriber.instrument
 
   # In multi-processed clustered architectures (puma, unicorn) don't
   # start tracing until the worker processes are spawned. This works
   # around issues when the opentracing implementation spawns threads
   Gitlab::Cluster::LifecycleEvents.on_worker_start do
-    tracer = Gitlab::Tracing::Factory.create_tracer(Gitlab.process_name, Gitlab::Tracing.connection_string)
+    tracer = Labkit::Tracing::Factory.create_tracer(Gitlab.process_name, Labkit::Tracing.connection_string)
     OpenTracing.global_tracer = tracer if tracer
   end
 end

lib/gitlab/gitaly_client.rb

@@ -52,9 +52,9 @@ module Gitlab
     end
 
     def self.interceptors
-      return [] unless Gitlab::Tracing.enabled?
+      return [] unless Labkit::Tracing.enabled?
 
-      [Gitlab::Tracing::GRPCInterceptor.instance]
+      [Labkit::Tracing::GRPCInterceptor.instance]
     end
     private_class_method :interceptors
 
@@ -218,7 +218,7 @@ module Gitlab
       feature = feature_stack && feature_stack[0]
       metadata['call_site'] = feature.to_s if feature
       metadata['gitaly-servers'] = address_metadata(remote_storage) if remote_storage
-      metadata['x-gitlab-correlation-id'] = Gitlab::CorrelationId.current_id if Gitlab::CorrelationId.current_id
+      metadata['x-gitlab-correlation-id'] = Labkit::Correlation::CorrelationId.current_id if Labkit::Correlation::CorrelationId.current_id
 
       metadata.merge!(server_feature_flags)
 

lib/gitlab/grape_logging/loggers/correlation_id_logger.rb

@@ -6,7 +6,7 @@ module Gitlab
     module Loggers
       class CorrelationIdLogger < ::GrapeLogging::Loggers::Base
         def parameters(_, _)
-          { Gitlab::CorrelationId::LOG_KEY => Gitlab::CorrelationId.current_id }
+          { Labkit::Correlation::CorrelationId::LOG_KEY => Labkit::Correlation::CorrelationId.current_id }
         end
       end
     end

lib/gitlab/json_logger.rb

@@ -10,7 +10,7 @@ module Gitlab
       data = {}
       data[:severity] = severity
       data[:time] = timestamp.utc.iso8601(3)
-      data[Gitlab::CorrelationId::LOG_KEY] = Gitlab::CorrelationId.current_id
+      data[Labkit::Correlation::CorrelationId::LOG_KEY] = Labkit::Correlation::CorrelationId.current_id
 
       case message
       when String

lib/gitlab/middleware/correlation_id.rb

@@ -12,7 +12,7 @@ module Gitlab
       end
 
       def call(env)
-        ::Gitlab::CorrelationId.use_id(correlation_id(env)) do
+        ::Labkit::Correlation::CorrelationId.use_id(correlation_id(env)) do
           @app.call(env)
         end
       end

lib/gitlab/sentry.rb

@@ -45,7 +45,7 @@ module Gitlab
         context # Make sure we've set everything we know in the context
 
         tags = {
-          Gitlab::CorrelationId::LOG_KEY.to_sym => Gitlab::CorrelationId.current_id
+          Labkit::Correlation::CorrelationId::LOG_KEY.to_sym => Labkit::Correlation::CorrelationId.current_id
         }
 
         Raven.capture_exception(exception, tags: tags, extra: extra)

lib/gitlab/sidekiq_middleware/correlation_injector.rb

@@ -4,8 +4,8 @@ module Gitlab
   module SidekiqMiddleware
     class CorrelationInjector
       def call(worker_class, job, queue, redis_pool)
-        job[Gitlab::CorrelationId::LOG_KEY] ||=
-          Gitlab::CorrelationId.current_or_new_id
+        job[Labkit::Correlation::CorrelationId::LOG_KEY] ||=
+          Labkit::Correlation::CorrelationId.current_or_new_id
 
         yield
       end

lib/gitlab/sidekiq_middleware/correlation_logger.rb

@@ -4,9 +4,9 @@ module Gitlab
   module SidekiqMiddleware
     class CorrelationLogger
       def call(worker, job, queue)
-        correlation_id = job[Gitlab::CorrelationId::LOG_KEY]
+        correlation_id = job[Labkit::Correlation::CorrelationId::LOG_KEY]
 
-        Gitlab::CorrelationId.use_id(correlation_id) do
+        Labkit::Correlation::CorrelationId.use_id(correlation_id) do
           yield
         end
       end

lib/gitlab/tracing/common.rb

-# frozen_string_literal: true
-
-require 'opentracing'
-
-module Gitlab
-  module Tracing
-    module Common
-      def tracer
-        OpenTracing.global_tracer
-      end
-
-      # Convience method for running a block with a span
-      def in_tracing_span(operation_name:, tags:, child_of: nil)
-        scope = tracer.start_active_span(
-          operation_name,
-          child_of: child_of,
-          tags: tags
-        )
-        span = scope.span
-
-        # Add correlation details to the span if we have them
-        correlation_id = Gitlab::CorrelationId.current_id
-        if correlation_id
-          span.set_tag('correlation_id', correlation_id)
-        end
-
-        begin
-          yield span
-        rescue => e
-          log_exception_on_span(span, e)
-          raise e
-        ensure
-          scope.close
-        end
-      end
-
-      def postnotify_span(operation_name, start_time, end_time, tags: nil, child_of: nil, exception: nil)
-        span = OpenTracing.start_span(operation_name, start_time: start_time, tags: tags, child_of: child_of)
-
-        log_exception_on_span(span, exception) if exception
-
-        span.finish(end_time: end_time)
-      end
-
-      def log_exception_on_span(span, exception)
-        span.set_tag('error', true)
-        span.log_kv(kv_tags_for_exception(exception))
-      end
-
-      def kv_tags_for_exception(exception)
-        case exception
-        when Exception
-          {
-            'event':      'error',
-            'error.kind': exception.class.to_s,
-            'message':    Gitlab::UrlSanitizer.sanitize(exception.message),
-            'stack':      exception.backtrace&.join("\n")
-          }
-        else
-          {
-            'event':        'error',
-            'error.kind':   exception.class.to_s,
-            'error.object': Gitlab::UrlSanitizer.sanitize(exception.to_s)
-          }
-        end
-      end
-    end
-  end
-end

lib/gitlab/tracing/factory.rb

-# frozen_string_literal: true
-
-require "cgi"
-
-module Gitlab
-  module Tracing
-    class Factory
-      OPENTRACING_SCHEME = "opentracing"
-
-      def self.create_tracer(service_name, connection_string)
-        return unless connection_string.present?
-
-        begin
-          opentracing_details = parse_connection_string(connection_string)
-          driver_name = opentracing_details[:driver_name]
-
-          case driver_name
-          when "jaeger"
-            JaegerFactory.create_tracer(service_name, opentracing_details[:options])
-          else
-            raise "Unknown driver: #{driver_name}"
-          end
-        rescue => e
-          # Can't create the tracer? Warn and continue sans tracer
-          warn "Unable to instantiate tracer: #{e}"
-          nil
-        end
-      end
-
-      def self.parse_connection_string(connection_string)
-        parsed = URI.parse(connection_string)
-
-        unless valid_uri?(parsed)
-          raise "Invalid tracing connection string"
-        end
-
-        {
-          driver_name: parsed.host,
-          options: parse_query(parsed.query)
-        }
-      end
-      private_class_method :parse_connection_string
-
-      def self.parse_query(query)
-        return {} unless query
-
-        CGI.parse(query).symbolize_keys.transform_values(&:first)
-      end
-      private_class_method :parse_query
-
-      def self.valid_uri?(uri)
-        return false unless uri
-
-        uri.scheme == OPENTRACING_SCHEME &&
-          uri.host.to_s =~ /^[a-z0-9_]+$/ &&
-          uri.path.empty?
-      end
-      private_class_method :valid_uri?
-    end
-  end
-end

lib/gitlab/tracing/grpc_interceptor.rb

-# frozen_string_literal: true
-
-require 'opentracing'
-require 'grpc'
-
-module Gitlab
-  module Tracing
-    class GRPCInterceptor < GRPC::ClientInterceptor
-      include Common
-      include Singleton
-
-      def request_response(request:, call:, method:, metadata:)
-        wrap_with_tracing(method, 'unary', metadata) do
-          yield
-        end
-      end
-
-      def client_streamer(requests:, call:, method:, metadata:)
-        wrap_with_tracing(method, 'client_stream', metadata) do
-          yield
-        end
-      end
-
-      def server_streamer(request:, call:, method:, metadata:)
-        wrap_with_tracing(method, 'server_stream', metadata) do
-          yield
-        end
-      end
-
-      def bidi_streamer(requests:, call:, method:, metadata:)
-        wrap_with_tracing(method, 'bidi_stream', metadata) do
-          yield
-        end
-      end
-
-      private
-
-      def wrap_with_tracing(method, grpc_type, metadata)
-        tags = {
-          'component' =>  'grpc',
-          'span.kind' =>  'client',
-          'grpc.method' => method,
-          'grpc.type' =>   grpc_type
-        }
-
-        in_tracing_span(operation_name: "grpc:#{method}", tags: tags) do |span|
-          OpenTracing.inject(span.context, OpenTracing::FORMAT_TEXT_MAP, metadata)
-
-          yield
-        end
-      end
-    end
-  end
-end

lib/gitlab/tracing/jaeger_factory.rb

-# frozen_string_literal: true
-
-require 'jaeger/client'
-
-module Gitlab
-  module Tracing
-    class JaegerFactory
-      # When the probabilistic sampler is used, by default 0.1% of requests will be traced
-      DEFAULT_PROBABILISTIC_RATE = 0.001
-
-      # The default port for the Jaeger agent UDP listener
-      DEFAULT_UDP_PORT = 6831
-
-      # Reduce this from default of 10 seconds as the Ruby jaeger
-      # client doesn't have overflow control, leading to very large
-      # messages which fail to send over UDP (max packet = 64k)
-      # Flush more often, with smaller packets
-      FLUSH_INTERVAL = 5
-
-      def self.create_tracer(service_name, options)
-        kwargs = {
-          service_name: service_name,
-          sampler: get_sampler(options[:sampler], options[:sampler_param]),
-          reporter: get_reporter(service_name, options[:http_endpoint], options[:udp_endpoint])
-        }.compact
-
-        extra_params = options.except(:sampler, :sampler_param, :http_endpoint, :udp_endpoint, :strict_parsing, :debug) # rubocop: disable CodeReuse/ActiveRecord
-        if extra_params.present?
-          message = "jaeger tracer: invalid option: #{extra_params.keys.join(", ")}"
-
-          if options[:strict_parsing]
-            raise message
-          else
-            warn message
-          end
-        end
-
-        Jaeger::Client.build(kwargs)
-      end
-
-      def self.get_sampler(sampler_type, sampler_param)
-        case sampler_type
-        when "probabilistic"
-          sampler_rate = sampler_param ? sampler_param.to_f : DEFAULT_PROBABILISTIC_RATE
-          Jaeger::Samplers::Probabilistic.new(rate: sampler_rate)
-        when "const"
-          const_value = sampler_param == "1"
-          Jaeger::Samplers::Const.new(const_value)
-        else
-          nil
-        end
-      end
-      private_class_method :get_sampler
-
-      def self.get_reporter(service_name, http_endpoint, udp_endpoint)
-        encoder = Jaeger::Encoders::ThriftEncoder.new(service_name: service_name)
-
-        if http_endpoint.present?
-          sender = get_http_sender(encoder, http_endpoint)
-        elsif udp_endpoint.present?
-          sender = get_udp_sender(encoder, udp_endpoint)
-        else
-          return
-        end
-
-        Jaeger::Reporters::RemoteReporter.new(
-          sender: sender,
-          flush_interval: FLUSH_INTERVAL
-        )
-      end
-      private_class_method :get_reporter
-
-      def self.get_http_sender(encoder, address)
-        Jaeger::HttpSender.new(
-          url: address,
-          encoder: encoder,
-          logger: Logger.new(STDOUT)
-        )
-      end
-      private_class_method :get_http_sender
-
-      def self.get_udp_sender(encoder, address)
-        pair = address.split(":", 2)
-        host = pair[0]
-        port = pair[1] ? pair[1].to_i : DEFAULT_UDP_PORT
-
-        Jaeger::UdpSender.new(
-          host: host,
-          port: port,
-          encoder: encoder,
-          logger: Logger.new(STDOUT)
-        )
-      end
-      private_class_method :get_udp_sender
-    end
-  end
-end

lib/gitlab/tracing/rack_middleware.rb

-# frozen_string_literal: true
-
-require 'opentracing'
-
-module Gitlab
-  module Tracing
-    class RackMiddleware
-      include Common
-
-      REQUEST_METHOD = 'REQUEST_METHOD'
-
-      def initialize(app)
-        @app = app
-      end
-
-      def call(env)
-        method = env[REQUEST_METHOD]
-
-        context = tracer.extract(OpenTracing::FORMAT_RACK, env)
-        tags = {
-          'component' =>   'rack',
-          'span.kind' =>   'server',
-          'http.method' => method,
-          'http.url' =>    self.class.build_sanitized_url_from_env(env)
-        }
-
-        in_tracing_span(operation_name: "http:#{method}", child_of: context, tags: tags) do |span|
-          @app.call(env).tap do |status_code, _headers, _body|
-            span.set_tag('http.status_code', status_code)
-          end
-        end
-      end
-
-      # Generate a sanitized (safe) request URL from the rack environment
-      def self.build_sanitized_url_from_env(env)
-        request = ActionDispatch::Request.new(env)
-
-        original_url = request.original_url
-        uri = URI.parse(original_url)
-        uri.query = request.filtered_parameters.to_query if uri.query.present?
-
-        uri.to_s
-      end
-    end
-  end
-end

lib/gitlab/tracing/rails/action_view_subscriber.rb

-# frozen_string_literal: true
-
-module Gitlab
-  module Tracing
-    module Rails
-      class ActionViewSubscriber
-        include RailsCommon
-
-        COMPONENT_TAG = 'ActionView'
-        RENDER_TEMPLATE_NOTIFICATION_TOPIC = 'render_template.action_view'
-        RENDER_COLLECTION_NOTIFICATION_TOPIC = 'render_collection.action_view'
-        RENDER_PARTIAL_NOTIFICATION_TOPIC = 'render_partial.action_view'
-
-        # Instruments Rails ActionView events for opentracing.
-        # Returns a lambda, which, when called will unsubscribe from the notifications
-        def self.instrument
-          subscriber = new
-
-          subscriptions = [
-            ActiveSupport::Notifications.subscribe(RENDER_TEMPLATE_NOTIFICATION_TOPIC) do |_, start, finish, _, payload|
-              subscriber.notify_render_template(start, finish, payload)
-            end,
-            ActiveSupport::Notifications.subscribe(RENDER_COLLECTION_NOTIFICATION_TOPIC) do |_, start, finish, _, payload|
-              subscriber.notify_render_collection(start, finish, payload)
-            end,
-            ActiveSupport::Notifications.subscribe(RENDER_PARTIAL_NOTIFICATION_TOPIC) do |_, start, finish, _, payload|
-              subscriber.notify_render_partial(start, finish, payload)
-            end
-          ]
-
-          create_unsubscriber subscriptions
-        end
-
-        # For more information on the payloads: https://guides.rubyonrails.org/active_support_instrumentation.html
-        def notify_render_template(start, finish, payload)
-          generate_span_for_notification("render_template", start, finish, payload, tags_for_render_template(payload))
-        end
-
-        def notify_render_collection(start, finish, payload)
-          generate_span_for_notification("render_collection", start, finish, payload, tags_for_render_collection(payload))
-        end
-
-        def notify_render_partial(start, finish, payload)
-          generate_span_for_notification("render_partial", start, finish, payload, tags_for_render_partial(payload))
-        end
-
-        private
-
-        def tags_for_render_template(payload)
-          {
-            'component' =>       COMPONENT_TAG,
-            'template.id' =>     payload[:identifier],
-            'template.layout' => payload[:layout]
-          }
-        end
-
-        def tags_for_render_collection(payload)
-          {
-            'component' =>            COMPONENT_TAG,
-            'template.id' =>          payload[:identifier],
-            'template.count' =>       payload[:count] || 0,
-            'template.cache.hits' =>  payload[:cache_hits] || 0
-          }
-        end
-
-        def tags_for_render_partial(payload)
-          {
-            'component' =>            COMPONENT_TAG,
-            'template.id' =>          payload[:identifier]
-          }
-        end
-      end
-    end
-  end
-end

lib/gitlab/tracing/rails/active_record_subscriber.rb

-# frozen_string_literal: true
-
-module Gitlab
-  module Tracing
-    module Rails
-      class ActiveRecordSubscriber
-        include RailsCommon
-
-        ACTIVE_RECORD_NOTIFICATION_TOPIC = 'sql.active_record'
-        OPERATION_NAME_PREFIX = 'active_record:'
-        DEFAULT_OPERATION_NAME = 'sqlquery'
-
-        # Instruments Rails ActiveRecord events for opentracing.
-        # Returns a lambda, which, when called will unsubscribe from the notifications
-        def self.instrument
-          subscriber = new
-
-          subscription = ActiveSupport::Notifications.subscribe(ACTIVE_RECORD_NOTIFICATION_TOPIC) do |_, start, finish, _, payload|
-            subscriber.notify(start, finish, payload)
-          end
-
-          create_unsubscriber [subscription]
-        end
-
-        # For more information on the payloads: https://guides.rubyonrails.org/active_support_instrumentation.html
-        def notify(start, finish, payload)
-          generate_span_for_notification(notification_name(payload), start, finish, payload, tags_for_notification(payload))
-        end
-
-        private
-
-        def notification_name(payload)
-          OPERATION_NAME_PREFIX + (payload[:name].presence || DEFAULT_OPERATION_NAME)
-        end
-
-        def tags_for_notification(payload)
-          {
-            'component' =>        'ActiveRecord',
-            'span.kind' =>        'client',
-            'db.type' =>          'sql',
-            'db.connection_id' => payload[:connection_id],
-            'db.cached' =>        payload[:cached] || false,
-            'db.statement' =>     payload[:sql]
-          }
-        end
-      end
-    end
-  end
-end

lib/gitlab/tracing/rails/rails_common.rb

-# frozen_string_literal: true
-
-module Gitlab
-  module Tracing
-    module Rails
-      module RailsCommon
-        extend ActiveSupport::Concern
-        include Gitlab::Tracing::Common
-
-        class_methods do
-          def create_unsubscriber(subscriptions)
-            -> { subscriptions.each { |subscriber| ActiveSupport::Notifications.unsubscribe(subscriber) } }
-          end
-        end
-
-        def generate_span_for_notification(operation_name, start, finish, payload, tags)
-          exception = payload[:exception]
-
-          postnotify_span(operation_name, start, finish, tags: tags, exception: exception)
-        end
-      end
-    end
-  end
-end

lib/gitlab/tracing/sidekiq/client_middleware.rb

-# frozen_string_literal: true
-
-require 'opentracing'
-
-module Gitlab
-  module Tracing
-    module Sidekiq
-      class ClientMiddleware
-        include SidekiqCommon
-
-        SPAN_KIND = 'client'
-
-        def call(worker_class, job, queue, redis_pool)
-          in_tracing_span(
-            operation_name: "sidekiq:#{job['class']}",
-            tags: tags_from_job(job, SPAN_KIND)) do |span|
-            # Inject the details directly into the job
-            tracer.inject(span.context, OpenTracing::FORMAT_TEXT_MAP, job)
-
-            yield
-          end
-        end
-      end
-    end
-  end
-end

lib/gitlab/tracing/sidekiq/server_middleware.rb

-# frozen_string_literal: true
-
-require 'opentracing'
-
-module Gitlab
-  module Tracing
-    module Sidekiq
-      class ServerMiddleware
-        include SidekiqCommon
-
-        SPAN_KIND = 'server'
-
-        def call(worker, job, queue)
-          context = tracer.extract(OpenTracing::FORMAT_TEXT_MAP, job)
-
-          in_tracing_span(
-            operation_name: "sidekiq:#{job['class']}",
-            child_of: context,
-            tags: tags_from_job(job, SPAN_KIND)) do |span|
-            yield
-          end
-        end
-      end
-    end
-  end
-end

lib/gitlab/tracing/sidekiq/sidekiq_common.rb

-# frozen_string_literal: true
-
-module Gitlab
-  module Tracing
-    module Sidekiq
-      module SidekiqCommon
-        include Gitlab::Tracing::Common
-
-        def tags_from_job(job, kind)
-          {
-            'component' =>     'sidekiq',
-            'span.kind' =>     kind,
-            'sidekiq.queue' => job['queue'],
-            'sidekiq.jid' =>   job['jid'],
-            'sidekiq.retry' => job['retry'].to_s,
-            'sidekiq.args' =>  job['args']&.join(", ")
-          }
-        end
-      end
-    end
-  end
-end

lib/peek/views/tracing.rb

@@ -4,9 +4,9 @@ module Peek
   module Views
     class Tracing < View
       def results
-        {
-          tracing_url: Gitlab::Tracing.tracing_url
-        }
+        tracing_url = Labkit::Tracing.tracing_url(Gitlab.process_name)
+
+        { tracing_url: tracing_url }
       end
     end
   end

spec/controllers/application_controller_spec.rb

@@ -462,7 +462,7 @@ describe ApplicationController do
     end
 
     it 'does log correlation id' do
-      Gitlab::CorrelationId.use_id('new-id') do
+      Labkit::Correlation::CorrelationId.use_id('new-id') do
         get :index
       end
 

spec/lib/gitlab/correlation_id_spec.rb

-# frozen_string_literal: true
-
-require 'fast_spec_helper'
-
-describe Gitlab::CorrelationId do
-  describe '.use_id' do
-    it 'yields when executed' do
-      expect { |blk| described_class.use_id('id', &blk) }.to yield_control
-    end
-
-    it 'stacks correlation ids' do
-      described_class.use_id('id1') do
-        described_class.use_id('id2') do |current_id|
-          expect(current_id).to eq('id2')
-        end
-      end
-    end
-
-    it 'for missing correlation id it generates random one' do
-      described_class.use_id('id1') do
-        described_class.use_id(nil) do |current_id|
-          expect(current_id).not_to be_empty
-          expect(current_id).not_to eq('id1')
-        end
-      end
-    end
-  end
-
-  describe '.current_id' do
-    subject { described_class.current_id }
-
-    it 'returns last correlation id' do
-      described_class.use_id('id1') do
-        described_class.use_id('id2') do
-          is_expected.to eq('id2')
-        end
-      end
-    end
-  end
-
-  describe '.current_or_new_id' do
-    subject { described_class.current_or_new_id }
-
-    context 'when correlation id is set' do
-      it 'returns last correlation id' do
-        described_class.use_id('id1') do
-          is_expected.to eq('id1')
-        end
-      end
-    end
-
-    context 'when correlation id is missing' do
-      it 'returns a new correlation id' do
-        expect(described_class).to receive(:new_id)
-          .and_call_original
-
-        is_expected.not_to be_empty
-      end
-    end
-  end
-
-  describe '.ids' do
-    subject { described_class.send(:ids) }
-
-    it 'returns empty list if not correlation is used' do
-      is_expected.to be_empty
-    end
-
-    it 'returns list if correlation ids are used' do
-      described_class.use_id('id1') do
-        described_class.use_id('id2') do
-          is_expected.to eq(%w(id1 id2))
-        end
-      end
-    end
-  end
-end

spec/lib/gitlab/json_logger_spec.rb

@@ -8,7 +8,7 @@ describe Gitlab::JsonLogger do
 
   describe '#format_message' do
     before do
-      allow(Gitlab::CorrelationId).to receive(:current_id).and_return('new-correlation-id')
+      allow(Labkit::Correlation::CorrelationId).to receive(:current_id).and_return('new-correlation-id')
     end
 
     it 'formats strings' do

spec/lib/gitlab/sentry_spec.rb

@@ -27,7 +27,7 @@ describe Gitlab::Sentry do
     context 'when exceptions should not be raised' do
       before do
         allow(described_class).to receive(:should_raise_for_dev?).and_return(false)
-        allow(Gitlab::CorrelationId).to receive(:current_id).and_return('cid')
+        allow(Labkit::Correlation::CorrelationId).to receive(:current_id).and_return('cid')
       end
 
       it 'logs the exception with all attributes passed' do
@@ -65,7 +65,7 @@ describe Gitlab::Sentry do
 
     before do
       allow(described_class).to receive(:enabled?).and_return(true)
-      allow(Gitlab::CorrelationId).to receive(:current_id).and_return('cid')
+      allow(Labkit::Correlation::CorrelationId).to receive(:current_id).and_return('cid')
     end
 
     it 'calls Raven.capture_exception' do

spec/lib/gitlab/sidekiq_middleware/correlation_injector_spec.rb

@@ -30,7 +30,7 @@ describe Gitlab::SidekiqMiddleware::CorrelationInjector do
   it 'injects into payload the correlation id' do
     expect_any_instance_of(described_class).to receive(:call).and_call_original
 
-    Gitlab::CorrelationId.use_id('new-correlation-id') do
+    Labkit::Correlation::CorrelationId.use_id('new-correlation-id') do
       TestWorker.perform_async(1234)
     end
 

spec/lib/gitlab/sidekiq_middleware/correlation_logger_spec.rb

@@ -23,7 +23,7 @@ describe Gitlab::SidekiqMiddleware::CorrelationLogger do
     expect_any_instance_of(described_class).to receive(:call).and_call_original
 
     expect_any_instance_of(TestWorker).to receive(:perform).with(1234) do
-      expect(Gitlab::CorrelationId.current_id).to eq('new-correlation-id')
+      expect(Labkit::Correlation::CorrelationId.current_id).to eq('new-correlation-id')
     end
 
     Sidekiq::Client.push(

spec/lib/gitlab/tracing/factory_spec.rb

-# frozen_string_literal: true
-
-require 'fast_spec_helper'
-
-describe Gitlab::Tracing::Factory do
-  describe '.create_tracer' do
-    let(:service_name) { 'rspec' }
-
-    context "when tracing is not configured" do
-      it 'ignores null connection strings' do
-        expect(described_class.create_tracer(service_name, nil)).to be_nil
-      end
-
-      it 'ignores empty connection strings' do
-        expect(described_class.create_tracer(service_name, '')).to be_nil
-      end
-
-      it 'ignores unknown implementations' do
-        expect(described_class.create_tracer(service_name, 'opentracing://invalid_driver')).to be_nil
-      end
-
-      it 'ignores invalid connection strings' do
-        expect(described_class.create_tracer(service_name, 'open?tracing')).to be_nil
-      end
-    end
-
-    context "when tracing is configured with jaeger" do
-      let(:mock_tracer) { double('tracer') }
-
-      it 'processes default connections' do
-        expect(Gitlab::Tracing::JaegerFactory).to receive(:create_tracer).with(service_name, {}).and_return(mock_tracer)
-
-        expect(described_class.create_tracer(service_name, 'opentracing://jaeger')).to be(mock_tracer)
-      end
-
-      it 'processes connections with parameters' do
-        expect(Gitlab::Tracing::JaegerFactory).to receive(:create_tracer).with(service_name, { a: '1', b: '2', c: '3' }).and_return(mock_tracer)
-
-        expect(described_class.create_tracer(service_name, 'opentracing://jaeger?a=1&b=2&c=3')).to be(mock_tracer)
-      end
-    end
-  end
-end

spec/lib/gitlab/tracing/grpc_interceptor_spec.rb

-# frozen_string_literal: true
-
-require 'fast_spec_helper'
-
-describe Gitlab::Tracing::GRPCInterceptor do
-  subject { described_class.instance }
-
-  shared_examples_for "a grpc interceptor method" do
-    let(:custom_error) { Class.new(StandardError) }
-
-    it 'yields' do
-      expect { |b| method.call(kwargs, &b) }.to yield_control
-    end
-
-    it 'propagates exceptions' do
-      expect { method.call(kwargs) { raise custom_error } }.to raise_error(custom_error)
-    end
-  end
-
-  describe '#request_response' do
-    let(:method) { subject.method(:request_response) }
-    let(:kwargs) { { request: {}, call: {}, method: 'grc_method', metadata: {} } }
-
-    it_behaves_like 'a grpc interceptor method'
-  end
-
-  describe '#client_streamer' do
-    let(:method) { subject.method(:client_streamer) }
-    let(:kwargs) { { requests: [], call: {}, method: 'grc_method', metadata: {} } }
-
-    it_behaves_like 'a grpc interceptor method'
-  end
-
-  describe '#server_streamer' do
-    let(:method) { subject.method(:server_streamer) }
-    let(:kwargs) { { request: {}, call: {}, method: 'grc_method', metadata: {} } }
-
-    it_behaves_like 'a grpc interceptor method'
-  end
-
-  describe '#bidi_streamer' do
-    let(:method) { subject.method(:bidi_streamer) }
-    let(:kwargs) { { requests: [], call: {}, method: 'grc_method', metadata: {} } }
-
-    it_behaves_like 'a grpc interceptor method'
-  end
-end

spec/lib/gitlab/tracing/jaeger_factory_spec.rb

-# frozen_string_literal: true
-
-require 'fast_spec_helper'
-
-describe Gitlab::Tracing::JaegerFactory do
-  describe '.create_tracer' do
-    let(:service_name) { 'rspec' }
-
-    shared_examples_for 'a jaeger tracer' do
-      it 'responds to active_span methods' do
-        expect(tracer).to respond_to(:active_span)
-      end
-
-      it 'yields control' do
-        expect { |b| tracer.start_active_span('operation_name', &b) }.to yield_control
-      end
-    end
-
-    context 'processes default connections' do
-      it_behaves_like 'a jaeger tracer' do
-        let(:tracer) { described_class.create_tracer(service_name, {}) }
-      end
-    end
-
-    context 'handles debug options' do
-      it_behaves_like 'a jaeger tracer' do
-        let(:tracer) { described_class.create_tracer(service_name, { debug: "1" }) }
-      end
-    end
-
-    context 'handles const sampler' do
-      it_behaves_like 'a jaeger tracer' do
-        let(:tracer) { described_class.create_tracer(service_name, { sampler: "const", sampler_param: "1" }) }
-      end
-    end
-
-    context 'handles probabilistic sampler' do
-      it_behaves_like 'a jaeger tracer' do
-        let(:tracer) { described_class.create_tracer(service_name, { sampler: "probabilistic", sampler_param: "0.5" }) }
-      end
-    end
-
-    context 'handles http_endpoint configurations' do
-      it_behaves_like 'a jaeger tracer' do
-        let(:tracer) { described_class.create_tracer(service_name, { http_endpoint: "http://localhost:1234" }) }
-      end
-    end
-
-    context 'handles udp_endpoint configurations' do
-      it_behaves_like 'a jaeger tracer' do
-        let(:tracer) { described_class.create_tracer(service_name, { udp_endpoint: "localhost:4321" }) }
-      end
-    end
-
-    context 'ignores invalid parameters' do
-      it_behaves_like 'a jaeger tracer' do
-        let(:tracer) { described_class.create_tracer(service_name, { invalid: "true" }) }
-      end
-    end
-
-    context 'accepts the debug parameter when strict_parser is set' do
-      it_behaves_like 'a jaeger tracer' do
-        let(:tracer) { described_class.create_tracer(service_name, { debug: "1", strict_parsing: "1" }) }
-      end
-    end
-
-    it 'rejects invalid parameters when strict_parser is set' do
-      expect { described_class.create_tracer(service_name, { invalid: "true", strict_parsing: "1" }) }.to raise_error(StandardError)
-    end
-  end
-end

spec/lib/gitlab/tracing/rack_middleware_spec.rb

-# frozen_string_literal: true
-
-require 'spec_helper'
-
-describe Gitlab::Tracing::RackMiddleware do
-  using RSpec::Parameterized::TableSyntax
-
-  describe '#call' do
-    context 'for normal middleware flow' do
-      let(:fake_app) { -> (env) { fake_app_response } }
-      subject { described_class.new(fake_app) }
-      let(:request) {  }
-
-      context 'for 200 responses' do
-        let(:fake_app_response) { [200, { 'Content-Type': 'text/plain' }, ['OK']] }
-
-        it 'delegates correctly' do
-          expect(subject.call(Rack::MockRequest.env_for("/"))).to eq(fake_app_response)
-        end
-      end
-
-      context 'for 500 responses' do
-        let(:fake_app_response) { [500, { 'Content-Type': 'text/plain' }, ['Error']] }
-
-        it 'delegates correctly' do
-          expect(subject.call(Rack::MockRequest.env_for("/"))).to eq(fake_app_response)
-        end
-      end
-    end
-
-    context 'when an application is raising an exception' do
-      let(:custom_error) { Class.new(StandardError) }
-      let(:fake_app) { ->(env) { raise custom_error } }
-
-      subject { described_class.new(fake_app) }
-
-      it 'delegates propagates exceptions correctly' do
-        expect { subject.call(Rack::MockRequest.env_for("/")) }.to raise_error(custom_error)
-      end
-    end
-  end
-
-  describe '.build_sanitized_url_from_env' do
-    def env_for_url(url)
-      env = Rack::MockRequest.env_for(input_url)
-      env['action_dispatch.parameter_filter'] = [/token/]
-
-      env
-    end
-
-    where(:input_url, :output_url) do
-      '/gitlab-org/gitlab-ce'                              | 'http://example.org/gitlab-org/gitlab-ce'
-      '/gitlab-org/gitlab-ce?safe=1'                       | 'http://example.org/gitlab-org/gitlab-ce?safe=1'
-      '/gitlab-org/gitlab-ce?private_token=secret'         | 'http://example.org/gitlab-org/gitlab-ce?private_token=%5BFILTERED%5D'
-      '/gitlab-org/gitlab-ce?mixed=1&private_token=secret' | 'http://example.org/gitlab-org/gitlab-ce?mixed=1&private_token=%5BFILTERED%5D'
-    end
-
-    with_them do
-      it { expect(described_class.build_sanitized_url_from_env(env_for_url(input_url))).to eq(output_url) }
-    end
-  end
-end

spec/lib/gitlab/tracing/rails/action_view_subscriber_spec.rb

-# frozen_string_literal: true
-
-require 'fast_spec_helper'
-require 'rspec-parameterized'
-
-describe Gitlab::Tracing::Rails::ActionViewSubscriber do
-  using RSpec::Parameterized::TableSyntax
-
-  shared_examples 'an actionview notification' do
-    it 'notifies the tracer when the hash contains null values' do
-      expect(subject).to receive(:postnotify_span).with(notification_name, start, finish, tags: expected_tags, exception: exception)
-
-      subject.public_send(notify_method, start, finish, payload)
-    end
-
-    it 'notifies the tracer when the payload is missing values' do
-      expect(subject).to receive(:postnotify_span).with(notification_name, start, finish, tags: expected_tags, exception: exception)
-
-      subject.public_send(notify_method, start, finish, payload.compact)
-    end
-
-    it 'does not throw exceptions when with the default tracer' do
-      expect { subject.public_send(notify_method, start, finish, payload) }.not_to raise_error
-    end
-  end
-
-  describe '.instrument' do
-    it 'is unsubscribeable' do
-      unsubscribe = described_class.instrument
-
-      expect(unsubscribe).not_to be_nil
-      expect { unsubscribe.call }.not_to raise_error
-    end
-  end
-
-  describe '#notify_render_template' do
-    subject { described_class.new }
-    let(:start) { Time.now }
-    let(:finish) { Time.now }
-    let(:notification_name) { 'render_template' }
-    let(:notify_method) { :notify_render_template }
-
-    where(:identifier, :layout, :exception) do
-      nil         | nil           | nil
-      ""          | nil           | nil
-      "show.haml" | nil           | nil
-      nil         | ""            | nil
-      nil         | "layout.haml" | nil
-      nil         | nil           | StandardError.new
-    end
-
-    with_them do
-      let(:payload) do
-        {
-          exception: exception,
-          identifier: identifier,
-          layout: layout
-        }
-      end
-
-      let(:expected_tags) do
-        {
-          'component' =>       'ActionView',
-          'template.id' =>     identifier,
-          'template.layout' => layout
-        }
-      end
-
-      it_behaves_like 'an actionview notification'
-    end
-  end
-
-  describe '#notify_render_collection' do
-    subject { described_class.new }
-    let(:start) { Time.now }
-    let(:finish) { Time.now }
-    let(:notification_name) { 'render_collection' }
-    let(:notify_method) { :notify_render_collection }
-
-    where(
-      :identifier, :count, :expected_count, :cache_hits, :expected_cache_hits, :exception) do
-      nil         | nil           | 0 | nil | 0 | nil
-      ""          | nil           | 0 | nil | 0 | nil
-      "show.haml" | nil           | 0 | nil | 0 | nil
-      nil         | 0             | 0 | nil | 0 | nil
-      nil         | 1             | 1 | nil | 0 | nil
-      nil         | nil           | 0 | 0   | 0 | nil
-      nil         | nil           | 0 | 1   | 1 | nil
-      nil         | nil           | 0 | nil | 0 | StandardError.new
-    end
-
-    with_them do
-      let(:payload) do
-        {
-          exception: exception,
-          identifier: identifier,
-          count: count,
-          cache_hits: cache_hits
-        }
-      end
-
-      let(:expected_tags) do
-        {
-          'component' =>            'ActionView',
-          'template.id' =>          identifier,
-          'template.count' =>       expected_count,
-          'template.cache.hits' =>  expected_cache_hits
-        }
-      end
-
-      it_behaves_like 'an actionview notification'
-    end
-  end
-
-  describe '#notify_render_partial' do
-    subject { described_class.new }
-    let(:start) { Time.now }
-    let(:finish) { Time.now }
-    let(:notification_name) { 'render_partial' }
-    let(:notify_method) { :notify_render_partial }
-
-    where(:identifier, :exception) do
-      nil         | nil
-      ""          | nil
-      "show.haml" | nil
-      nil         | StandardError.new
-    end
-
-    with_them do
-      let(:payload) do
-        {
-          exception: exception,
-          identifier: identifier
-        }
-      end
-
-      let(:expected_tags) do
-        {
-          'component' =>            'ActionView',
-          'template.id' =>          identifier
-        }
-      end
-
-      it_behaves_like 'an actionview notification'
-    end
-  end
-end

spec/lib/gitlab/tracing/rails/active_record_subscriber_spec.rb

-# frozen_string_literal: true
-
-require 'fast_spec_helper'
-require 'rspec-parameterized'
-
-describe Gitlab::Tracing::Rails::ActiveRecordSubscriber do
-  using RSpec::Parameterized::TableSyntax
-
-  describe '.instrument' do
-    it 'is unsubscribeable' do
-      unsubscribe = described_class.instrument
-
-      expect(unsubscribe).not_to be_nil
-      expect { unsubscribe.call }.not_to raise_error
-    end
-  end
-
-  describe '#notify' do
-    subject { described_class.new }
-    let(:start) { Time.now }
-    let(:finish) { Time.now }
-
-    where(:name, :operation_name, :exception, :connection_id, :cached, :cached_response, :sql) do
-      nil         | "active_record:sqlquery"  | nil               | nil | nil   | false | nil
-      ""          | "active_record:sqlquery"  | nil               | nil | nil   | false | nil
-      "User Load" | "active_record:User Load" | nil               | nil | nil   | false | nil
-      "Repo Load" | "active_record:Repo Load" | StandardError.new | nil | nil   | false | nil
-      nil         | "active_record:sqlquery"  | nil               | 123 | nil   | false | nil
-      nil         | "active_record:sqlquery"  | nil               | nil | false | false | nil
-      nil         | "active_record:sqlquery"  | nil               | nil | true  | true  | nil
-      nil         | "active_record:sqlquery"  | nil               | nil | true  | true  | "SELECT * FROM users"
-    end
-
-    with_them do
-      def payload
-        {
-          name: name,
-          exception: exception,
-          connection_id: connection_id,
-          cached: cached,
-          sql: sql
-        }
-      end
-
-      def expected_tags
-        {
-          "component" =>        "ActiveRecord",
-          "span.kind" =>        "client",
-          "db.type" =>          "sql",
-          "db.connection_id" => connection_id,
-          "db.cached" =>        cached_response,
-          "db.statement" =>     sql
-        }
-      end
-
-      it 'notifies the tracer when the hash contains null values' do
-        expect(subject).to receive(:postnotify_span).with(operation_name, start, finish, tags: expected_tags, exception: exception)
-
-        subject.notify(start, finish, payload)
-      end
-
-      it 'notifies the tracer when the payload is missing values' do
-        expect(subject).to receive(:postnotify_span).with(operation_name, start, finish, tags: expected_tags, exception: exception)
-
-        subject.notify(start, finish, payload.compact)
-      end
-
-      it 'does not throw exceptions when with the default tracer' do
-        expect { subject.notify(start, finish, payload) }.not_to raise_error
-      end
-    end
-  end
-end

spec/lib/gitlab/tracing/sidekiq/client_middleware_spec.rb

-# frozen_string_literal: true
-
-require 'fast_spec_helper'
-
-describe Gitlab::Tracing::Sidekiq::ClientMiddleware do
-  describe '#call' do
-    let(:worker_class) { 'test_worker_class' }
-    let(:job) do
-      {
-        'class' => "jobclass",
-        'queue' => "jobqueue",
-        'retry' => 0,
-        'args' =>  %w{1 2 3}
-      }
-    end
-    let(:queue) { 'test_queue' }
-    let(:redis_pool) { double("redis_pool") }
-    let(:custom_error) { Class.new(StandardError) }
-    let(:span) { OpenTracing.start_span('test', ignore_active_scope: true) }
-
-    subject { described_class.new }
-
-    it 'yields' do
-      expect(subject).to receive(:in_tracing_span).with(
-        operation_name: "sidekiq:jobclass",
-        tags: {
-          "component" =>     "sidekiq",
-          "span.kind" =>     "client",
-          "sidekiq.queue" => "jobqueue",
-          "sidekiq.jid" =>   nil,
-          "sidekiq.retry" => "0",
-          "sidekiq.args" =>  "1, 2, 3"
-        }
-      ).and_yield(span)
-
-      expect { |b| subject.call(worker_class, job, queue, redis_pool, &b) }.to yield_control
-    end
-
-    it 'propagates exceptions' do
-      expect { subject.call(worker_class, job, queue, redis_pool) { raise custom_error } }.to raise_error(custom_error)
-    end
-  end
-end

spec/lib/gitlab/tracing/sidekiq/server_middleware_spec.rb

-# frozen_string_literal: true
-
-require 'fast_spec_helper'
-
-describe Gitlab::Tracing::Sidekiq::ServerMiddleware do
-  describe '#call' do
-    let(:worker_class) { 'test_worker_class' }
-    let(:job) do
-      {
-        'class' => "jobclass",
-        'queue' => "jobqueue",
-        'retry' => 0,
-        'args' =>  %w{1 2 3}
-      }
-    end
-    let(:queue) { 'test_queue' }
-    let(:custom_error) { Class.new(StandardError) }
-    let(:span) { OpenTracing.start_span('test', ignore_active_scope: true) }
-    subject { described_class.new }
-
-    it 'yields' do
-      expect(subject).to receive(:in_tracing_span).with(
-        hash_including(
-          operation_name: "sidekiq:jobclass",
-          tags: {
-            "component" =>     "sidekiq",
-            "span.kind" =>     "server",
-            "sidekiq.queue" => "jobqueue",
-            "sidekiq.jid" =>   nil,
-            "sidekiq.retry" => "0",
-            "sidekiq.args" =>  "1, 2, 3"
-          }
-        )
-      ).and_yield(span)
-
-      expect { |b| subject.call(worker_class, job, queue, &b) }.to yield_control
-    end
-
-    it 'propagates exceptions' do
-      expect { subject.call(worker_class, job, queue) { raise custom_error } }.to raise_error(custom_error)
-    end
-  end
-end

spec/requests/api/helpers_spec.rb

@@ -251,7 +251,7 @@ describe API::Helpers do
         correlation_id: 'new-correlation-id'
       }, extra: {})
 
-      Gitlab::CorrelationId.use_id('new-correlation-id') do
+      Labkit::Correlation::CorrelationId.use_id('new-correlation-id') do
         handle_api_exception(exception)
       end
     end